RH% HI and LOW: Displayed when the High or Low Alarm limit is °C exceeded. See ‘Alarm Status’ below for further information. °F RH%: Relative Humidity (42270 and 42275 only) C or F: Temperature units. COMM: Appears when Datalogger is communicating with a PC. Recording Status Indication Both the RED status LED and the display indicator ‘REC’ will flash every 5 seconds if the sampling rate is set to 5 seconds or higher. If the sampling rate is set lower than 5 seconds, the indicators will flash ev

When the mouse button is released, the cursor snaps to the nearest data point. Offset Knob Use the Offset control in the DISPLAY CONTROL field (lower right) to optimize the data viewing area. Press the up or down arrow key to increment or decrement the record number (with corresponding date) in the graph. 5 V7.1 1/08 Zoom and Pan on Graphs To zoom in, press the key and click the left mouse button over the desired point; release the key after the mouse button is pressed. The view re